The cold shock response in Lactococcus lactis subsp. lactis

The lactic acid bacterium, Lactococcus lactis subsp. lactis IL1403 was subjected to different cold temperatures for various times. Physiological experiments showed that this strain had an improved survival capacity in stationary phase as the temperature decreased. Two-dimensional electrophoresis of...

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Bibliographic Details
Published in:Current microbiology 1994-10, Vol.29 (4), p.213-216
Main Authors: Panoff, J.M, Legrand, S, Thammavongs, B, Boutibonnes, P
Format: Article
Language:English
Subjects:
BACTERIA
BACTERIAS ACIDOLACTICAS
BACTERIE LACTIQUE
Bacteriology
Biological and medical sciences
ESTRES
FRIO
FROID
Fundamental and applied biological sciences. Psychology
Growth, nutrition, cell differenciation
INDICE DE CRECIMIENTO
Lactococcus lactis lactis
Microbiology
PROTEINAS
PROTEINE
STRESS
SUPERVIVENCIA
SURVIE
TAUX DE CROISSANCE
TEMPERATURA
TEMPERATURE
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Summary:The lactic acid bacterium, Lactococcus lactis subsp. lactis IL1403 was subjected to different cold temperatures for various times. Physiological experiments showed that this strain had an improved survival capacity in stationary phase as the temperature decreased. Two-dimensional electrophoresis of proteins extracted from cold-temperature exposed cultures showed that a dozen proteins are overexpressed up to threefold compared with exposure at 30 degrees C. Most of these proteins are overexpressed first, temporarily and second, in the first 10 h after the transfer to 8 degrees C. These observations indicate that response to cold stress in L. lactis subsp. lactis is an active phenomenon
ISSN:0343-8651
1432-0991
DOI:10.1007/BF01570156